Some standard content:
ICS65.060.99
B93
JB
Machinery Industry Standard of the People's Republic of China
JB/T5680-2000
Small roller mill||tt ||Technical Conditions
Specification for smallsized roller mill2000-11-28 Release
National Machinery Industry Bureau
Release
2001-06-01 Implementation
JB/T5680— 2000
Previous
Preface
This standard is a revision of JB/T5680-1991 "Small Type Mill". The main modifications of this standard to JB/T5680-1991 are as follows: the index requirements for single-machine automatic feeding grinding mills are added; the markings of grinding mills and grinding mills are modified: - the main parameters of grinding mills are modified (such as grinding length): 1. Deleted the quick axial momentum index proposed by the original standard for sliding bearings; modified the marking method for the coaxiality requirements of the two journals of grinding and bearings: 1. Modified the grinding roller hardness index requirements; the paint coating quality plate is changed from high-quality coating to ordinary coating: the paint film thickness index is added. This standard will replace JB/T5680-1991 from the date of implementation. Appendix A of this standard is an appendix to the standard.
This standard is proposed and administered by the National Agricultural Machinery Standardization Technical Committee. The unit responsible for drafting this standard: Shandong Agricultural Machinery Research Institute. Units participating in the drafting of this standard: Sichuan Hushan Grain and Oil Machinery Co., Ltd., Henan Nanyang Huihui Machinery Factory. The main drafters of this standard: Liu Qingguo, Zhou Qingnong, Sun Zhongpei, Zhang Congli, Qiao Wende. This standard was first released as NJ341-84 in 1984. It was first revised as JB/T5680-91 in 1991. This is the second revision.
1 Scope
Machine Industry Standard of the People's Republic of China
Technical Conditions
Small Roller Mill:
Specificationforsmail-sizedrollermillJB/T56802000||tt ||Replaces JB/T56801991
This standard specifies the technical requirements, test methods, acceptance rules and markings, packaging, transportation, and storage requirements for small series mills.
This standard applies to small grinding mills, that is, small roller grinding and screening combination models (including stand-alone automatic feeding mills, hereinafter referred to as mills)
2 quotes Standards
The provisions contained in the following standards constitute provisions of this standard through reference in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB/T 143.2—1995
GB/T 699—1999
GB/T 11841996
GB 1351—1999
GB/T1801—1999
GB/T2828—1987
GB/T 4813-1995
GB/T 94391988
GB10395.1—1989
GB 10396—1999
GB /T13306—1991
GB/TI4014—1992
JB/T 5673—1991
JB/T5681—2000
3 Technical requirements
Coniferous trees Dimensions, tolerances and grading of logs for sawing High-quality carbon structural steel
Shape and position tolerances without tolerance values
Wheat
Selection of limits and fits, tolerance zones and fits Batch-by-batch inspection and counting sampling procedures and sampling tables (applicable to the inspection of consecutive batches) Dimensions, tolerances and grading of gray iron castings for sawing logs for leaf tree sawing
Safety technical requirements for agricultural and forestry tractors and machinery Part 1: General principles Agricultural and forestry tractors and machinery, lawn and gardening power machinery safety signs and hazard graphic general signs
Silk, synthetic fiber screens
General technical conditions for painting of agricultural and forestry tractors and machinery Test methods for small series mills
3.1 The grinding mill shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 3.2 Safety requirements
3.2.1 The manufacturing materials of the contact parts between the machine parts and the T-added materials must not cause pollution to the T-added materials. 3.2.2 The grinding mill motor pulley to the grinding mill pulley and grinding roller The transmission system should have protective devices that comply with Chapter 6 of GB10395.1-1989.
3.2.3 Safety signs complying with GB10396 should be fixed on the grinding mill at parts that are dangerous during operation, use and maintenance. The State Machinery Industry Bureau approved the implementation on 2001-06-01 on 2000-11-28
JB/T5680-2000
3.2.4 The instruction manual of the grinding mill should have information on safe use of electricity and safe operation. content and give safety warnings. 3.3 Marking and basic parameters
3.3.1 Marking
The marking method of the grinding mill is as follows:
6F
Improvement code
Grinding length, cm
Nominal grinding diameter, cm
Roller mill
Example: The nominal grinding diameter is 220mm, the grinding length is 350mm, the first improved grinding mill. Its model mark is: 6F-2235A
3.3.2 Basic parameters
a) The nominal grinding diameter should be: 180mm, 220mm, 250mm. b) The grinding length should be: 200mm, 250mm, 300mm, 350mm, 400mm, 500mm. 3.4 Performance indicators
When the following conditions are met, the performance indicators of the Eagle powder machine when processing standard powder should comply with the provisions of Table 1. a) The wheat used for testing should be third-grade or above wheat that meets the requirements of GB1351; b) The flour mill should be factory-made! Products within the year, and the dense edition should be a new drawing edition. c) The powder extraction rate should reach the theoretical powder extraction rate.
Table 1 Product Performance Index
Serial Number
-
2
3
5
6||tt| |small
wheat
powder
quality
item
month
tkg powder/(cm·h)
Width and light centimeters* hourly output
Power consumption per ton of powder kW·h/t
Noise 'dB(A)
Processing accuracy
Hard table
Jiaomai
Ash (based on dry matter)
%
Thickness %
Gluten content (based on wet weight)%
Magnetic Gold Fengwu g / kg | ||≤30.0 (34)
≤29.0 (33)
≤85 (88)
To be consistent with the standard sample
≤1.10
All passed through the CQ20 sieve, and no more than 20.024.0 remained in the CB30 sieve
≤0.003
Normal
≤56
460
Note: Index requirements The number in the inserted number is the index requirement of a single-machine automatic feeding mill with the material pin at the 1: position and feeding by one person. 3.5
2
Part 1 requirements
JB/T5680--2000
3.5.1 The grinding mill should have two grinding and leveling mechanisms or corresponding reliable guarantees measure. 3.5.2 The grinding clutch mechanism and feeding mechanism should comply with the procedures of feeding first and then closing, and first leaving the gate and then cutting off the material. 3.5.3 The clutch mechanism of the grinding mill should be able to be used normally when the effective grinding layer wear depth is 13mm. 3.5.4 The feeding mechanism should be able to ensure continuous and even supply of material over the entire grinding length of the grinding roller. 3.5.5 Grinding should comply with the provisions of Appendix A of this standard (standard appendix). 3.5.6 The brushes in the grinding mill should be made of non-toxic and odorless materials whose mechanical properties are not lower than those of polyester or polyester. 3.5.7 The screen silk used in the grinding mill should comply with the requirements of GB/T14014. 3.5.8 The material of wooden parts should comply with GB/T143.2 or the provisions of second-grade or above second-grade logs in GB/T4813, the moisture content shall not be greater than 15%. The surface of wooden parts should be smooth without obvious warping, and the joints should be free of misalignment, cracking, and sagging. 3.5.9 Gray iron castings should comply with the requirements of GB/T9439. 3.5.10 Sheet metal parts must not have cracks, wrinkles or concavities, the buckle seams must be firm, and the soldering must be tight. The machined surface is not allowed to have rust, silicon bumps, scratches and other defects that affect the service life or appearance. Burrs should be removed and sharp edges should be blunted 3.5.11
.
3.5.12 The coating of electroplated parts should be firm, bright and uniform, and should not have peeling, spots or blistering. 3.6 Final assembly requirements
3.6.1 The components in the grinding mill must be inspected and passed before assembly. 3.6.2 Both ends of the grinder must not rub against the shell, and materials must not leak. 3.6.3 The uniformity of the gap between the two grinders shall not be less than 90%. 3.6.4 The pre-compression amount of the polished compression spring should comply with the requirements of the drawings and relevant technical documents. 3.6.5 The adjustment mechanism of each rotating part should be flexible and reliable, and the connecting parts and fasteners should not be loose. 3.6.6 Grinding bearings should have sealing devices.
3.6.7 There should be no obvious oil leakage or material leakage in any part of the grinding mill. 3.6.8 The non-painted surfaces of exposed workpieces of the grinding mill should be coated with anti-rust oil. 3.6.9 Sufficient lubricating oil should be added when assembling the grinding mill bearings. 3.6.10 During the dry running test, the grinding mill should run smoothly without any impact or periodic squealing, and the temperature rise of the bearings should not exceed 10°C. The quality of the surface coating of the grinding mill should not be lower than the requirements of ordinary coatings specified in JB/T5673, and the total thickness of the paint film should not be less than 35μm. 3.6.11
4 Test Methods
Performance test and production test shall be carried out in accordance with the provisions of JB/T5681. 5 Inspection Rules
5.1 The dense powder machine shall be inspected by the inspection department of the manufacturer before leaving the factory, and shall be accompanied by an inspection certificate. 5.2 The appearance and assembly quality of the grinding mill should be checked in accordance with the provisions of 3.6.10 and 3.6.11, and an idle running test of not less than 15 minutes should be carried out. 5.3 Inspection of 3.6.3 of this standard
The closing of the grinding mill Finally, put a 60g/m paper with a length of 100mm and a width of 0.9 times the grinding length between the two grinding plates, turn the fast roller to let the paper pass, observe the tooth mark distribution, and calculate the uniformity of the gap between the two grinding plates (measure three times, take Its average value) 5.4 The performance test of the grinding mill produced in batches shall be carried out at least twice a year, and the results shall comply with the provisions of 3.4. 5.5 The ability to produce flour per centimeter of grinding in one drawing shall be tested in accordance with the provisions of 4.3.4 in JB/T5681--2000. 3
JB/T5630-2000
5.6 The ordering unit has the right to conduct random inspections of the factory powder separator in accordance with the provisions of GB/T2828. The samples, batch sizes and AQL values ??for random inspection are determined by the ordering unit and the manufacturer through negotiation.
6 Marking, packaging, transportation and storage
6.1 The sign of the grinding mill should be placed on the housing above the grinding door, and the sign should comply with the regulations of GB/T13306. The content of the sign should include a) manufacturer name;
b) product name;
c) product model:
d) main technical parameters of the product:
e) product Implementation standards:
f) Product manufacturing date or factory number:
g) Manufacturer's address.
6.2 When the product is suitable for transportation, loading and unloading and ensures integrity and no damage, the supply and demand parties shall negotiate, select appropriate materials, and package in every possible way. Export products are packaged according to the requirements of the foreign trade department. 6.3 The accessories supplied with the product shall be agreed upon by both parties. The technical documents supplied with the product should be: 6.4
a) Product certificate:
b) Product instruction manual:
c) Packing list:
d) Three Guarantees Certificate:
e) User opinion letter.
6.5 The grinding mill should be stored in a well-ventilated place with dry ground, and measures should be taken to prevent wind, rain, and sunlight. A1 mark
The marking regulations for grinding rollers are as follows:
6FMG-
JB/T5680—2000
Appendix A
(standard appendix)|| tt||Grinding
Grinding length, cm
ed
Nominal grinding diameter, cm
Roller mill grinding
Example: The grinding roller with a nominal diameter of 220mm and a length of 350mm is marked 6FMG-2235
A2 Technical Requirements
A2.1 Material
A2.1.1 Grinding outer layer alloy cast iron should be used Test and ensure that the required materials are used. A.1.2 The ground inner layer of cast iron should comply with the mechanical properties requirements of HT150 in GB/T9439. A2.1.3 The shaft should be made of steel no less than 45 in GB/T699. A2.2 Manufacturing quality
A2.2.1 body white layer depth is 15~25mm.
The T surface hardness of the A2.2.2 body after mechanical T treatment is 50~57HRC, and the hardness of the effective T. layer of the edited body (within the 13mm range from the circumference to the center in the radial direction) is not less than 50HRC.
A2.2.3 After mechanically adding T, the working surface is not allowed to have casting defects such as cracks, slag inclusions, pores, sand limits and shrinkage porosity. A2.2.4 There should be no wire breakage, peeling, etc. after grinding and drawing, and no more than one tooth should be messed up. A2.2.5 The radial circular runout of the working surface of the editing body to the common axis of the journals of the two bearing parts should not be lower than level 8 (light printing) or level 9 (wire printing) specified in GB/T1184. The plain line of the working surface of the editing body The straightness should not be lower than level 8 (smooth roller) or level 9 (silk roll) specified in GB/T1184, and the cylindricity of the working surface of the editing body should not be lower than level 8 specified in GB/T1184. A2.2.6 The radial runout of the two journals matched with the bearing to the axis of the grinding roller should not be lower than level 8 specified in GB/T1184. A=.2.7 The dimensional deviation of the two journals matched with the bearing should comply with k6 specified in GB/T1801, and the surface roughness R is 1.6 μm (rolling bearings equipped with tapered sleeves should be h8, and the surface roughness R. is 3.2 μm ). A2.2.8 The dimensional deviation of the two journals mated with the gear (or pulley) shall comply with h8 specified in GB/T1801, and the surface roughness R shall be 6.3 μm.
A3 Inspection Rules and Methods
A3.1 Grinding should be inspected by the manufacturer's inspection department before leaving the factory, and the inspection certificate should be attached. A3.2 The hardness of the working surface of the edit body is taken from three points on three lines 120° apart around the working surface of the undrawn edit body (5
JB/T5680-2000
on the same bus line) The three points are respectively located at the center of the hand-made body and 40mm from both ends). If the hardness of one point is unqualified, four additional points are allowed to be measured around the point, and the average of the five points is taken as the hardness value of the point (the four additional points are located at the four corners of a square with a side length of 40 mm centered on the unqualified point) .
The hardness of the effective working layer of the block is tested by slicing at 20mm from both ends of the block. Each piece is measured at four points 90° apart from the circumference to the center 13mm. The minimum value is its hardness value. A3.3 The mass-produced grinding rollers shall undergo installation performance tests at least twice a year. The test methods shall be in accordance with the provisions of JB/T5681, and the test items and requirements shall comply with the serial numbers in Table 1 of this standard. 6. A3.4 The ordering unit has the right to conduct random inspections of the factory grinding materials according to the provisions of GBT2828. The sample size, batch size and AQL value shall be determined by the ordering unit and the manufacturer.
·A4 mark, packaging, Transportation and Storage
A4.1 The manufacturer's mark should be stamped on either end of the polishing body before leaving the factory. A4.2 The polishing should be cleaned and rust-proofed before leaving the factory to ensure that the product is not damaged. In the event of damage, the packaging materials and packaging methods shall be agreed upon by both parties.
A4.3 The machine must be lifted and handled with care during transportation, and shall not be rolled or bumped. Store in a well-ventilated, dry place and should be protected from rain and moisture.3. The uniformity of the gap between two grinders shall not be less than 90%. 3.6.4 The pre-compression amount of the polished compression spring should comply with the requirements of the drawings and relevant technical documents. 3.6.5 The adjustment mechanism of each rotating part should be flexible and reliable, and the connecting parts and fasteners should not be loose. 3.6.6 Grinding bearings should have sealing devices.
3.6.7 There should be no obvious oil leakage or material leakage in any part of the grinding mill. 3.6.8 The non-painted surfaces of the exposed workpieces of the grinding mill should be coated with anti-rust oil. 3.6.9 Sufficient lubricating oil should be added when assembling the grinding mill bearings. 3.6.10 During the dry running test, the grinding mill should run smoothly without any impact or periodic squealing, and the temperature rise of the bearings should not exceed 10°C. The quality of the surface coating of the grinding mill should not be lower than the requirements of ordinary coatings specified in JB/T5673, and the total thickness of the paint film should not be less than 35μm. 3.6.11
4 Test Methods
Performance test and production test shall be carried out in accordance with the provisions of JB/T5681. 5 Inspection Rules
5.1 The dense powder machine shall be inspected by the inspection department of the manufacturer before leaving the factory, and shall be accompanied by an inspection certificate. 5.2 The appearance and assembly quality of the grinding mill should be checked in accordance with the provisions of 3.6.10 and 3.6.11, and an idle running test of not less than 15 minutes should be carried out. 5.3 Inspection of 3.6.3 of this standard
The closing of the grinding mill Finally, put a 60g/m paper with a length of 100mm and a width of 0.9 times the grinding length between the two grinding plates, turn the fast roller to let the paper pass, observe the tooth mark distribution, and calculate the uniformity of the gap between the two grinding plates (measure three times, take Its average value) 5.4 The performance test of the grinding mill produced in batches shall be carried out at least twice a year, and the results shall comply with the provisions of 3.4. 5.5 The ability to produce flour per centimeter of grinding in one drawing shall be tested in accordance with the provisions of 4.3.4 in JB/T5681--2000. 3
JB/T5630-2000
5.6 The ordering unit has the right to conduct random inspections of the factory powder separator in accordance with the provisions of GB/T2828. The samples, batch sizes and AQL values ??for random inspection are determined by the ordering unit and the manufacturer through negotiation.
6 Marking, packaging, transportation and storage
6.1 The sign of the grinding mill should be placed on the housing above the grinding door, and the sign should comply with the regulations of GB/T13306. The content of the sign should include a) manufacturer name;
b) product name;
c) product model:
d) main technical parameters of the product:
e) product Implementation standards:
f) Product manufacturing date or factory number:
g) Manufacturer's address.
6.2 When the product is suitable for transportation, loading and unloading and ensures integrity and no damage, the supply and demand parties shall negotiate, select appropriate materials, and package in every possible way. Export products are packaged according to the requirements of the foreign trade department. 6.3 The accessories supplied with the product shall be agreed upon by both parties. The technical documents supplied with the product should be: 6.4
a) Product certificate:
b) Product instruction manual:
c) Packing list:
d) Three Guarantees Certificate:
e) User opinion letter.
6.5 The grinding mill should be stored in a well-ventilated place with dry ground, and measures should be taken to prevent wind, rain, and sunlight. A1 mark
The marking regulations for grinding rollers are as follows:
6FMG-
JB/T5680—2000
Appendix A
(standard appendix)|| tt||Grinding
Grinding length, cm
ed
Nominal grinding diameter, cm
Roller mill grinding
Example: The grinding roller with a nominal diameter of 220mm and a length of 350mm is marked 6FMG-2235
A2 Technical Requirements
A2.1 Material
A2.1.1 Grinding outer alloy cast iron should be used Test and ensure that the required materials are used. A.1.2 The ground inner cast iron should comply with the mechanical properties requirements of HT150 in GB/T9439. A2.1.3 The shaft should be made of steel no less than 45 in GB/T699. A2.2 Manufacturing quality
A2.2.1 series body white mouth layer depth is 15~25mm.
After mechanically adding T to the A2.2.2 body, the T surface hardness is 50~57HRC, and the hardness of the effective T. layer of the body (within the 13mm range from the circumference to the center in the radial direction) is not less than 50HRC.
A2.2.3 After mechanically adding T, the working surface is not allowed to have casting defects such as cracks, slag inclusions, pores, sand limits and shrinkage porosity. A2.2.4 There should be no wire breakage, peeling, etc. after grinding and drawing, and no more than one tooth should be messed up. A2.2.5 The radial circular runout of the working surface of the editing body to the common axis of the journals of the two bearing parts should not be lower than level 8 (light printing) or level 9 (wire printing) specified in GB/T1184. The plain line of the working surface of the editing body The straightness should not be lower than level 8 (smooth roller) or level 9 (silk roll) specified in GB/T1184, and the cylindricity of the working surface of the editing body should not be lower than level 8 specified in GB/T1184. A2.2.6 The radial runout of the two journals mated with the bearing to the axis of the grinding roller should not be lower than level 8 specified in GB/T1184. A=.2.7 The dimensional deviation of the two journals matched with the bearing should comply with k6 specified in GB/T1801, and the surface roughness R should be 1.6μm (rolling bearings equipped with tapered sleeves should be h8, and the surface roughness R. should be 3.2μm ). A2.2.8 The size deviation of the two journals mated with the gear (or pulley) shall comply with h8 specified in GB/T1801, and the surface roughness R shall be 6.3 μm.
A3 Inspection Rules and Methods
A3.1 Grinding should be inspected by the manufacturer's inspection department before leaving the factory, and the inspection certificate should be attached. A3.2 The hardness of the working surface of the editing body is taken from three points on three lines 120° apart around the working surface of the undrawn editing body (5
JB/T5680-2000
on the same bus) The three points are respectively located at the center of the hand-made body and 40mm from both ends). If the hardness of one point is unqualified, four additional points are allowed to be measured around the point, and the average of the five points is taken as the hardness value of the point (the four additional points are located at the four corners of a square with a side length of 40 mm centered on the unqualified point) .
The hardness of the effective working layer of the block is tested by slicing at 20mm from both ends of the block. Each piece is measured at four points 90° apart from the circumference to the center 13mm. The minimum value is its hardness value. A3.3 The mass-produced grinding rollers shall undergo installation performance tests at least twice a year. The test methods shall be in accordance with the provisions of JB/T5681, and the test items and requirements shall comply with the serial numbers in Table 1 of this standard. 6. A3.4 The ordering unit has the right to conduct random inspections of the factory grinding materials according to the provisions of GBT2828. The sample, batch size and AQL value shall be determined by the ordering unit and the manufacturer.
·A4 mark, packaging, Transportation and Storage
A4.1 The manufacturer's mark should be stamped on either end of the polishing body before leaving the factory. A4.2 The polishing should be cleaned and rust-proofed before leaving the factory to ensure that the product is not damaged. In the event of damage, the packaging materials and packaging methods shall be agreed upon by both parties.
A4.3 The machine must be lifted and handled with care during transportation, and shall not be rolled or bumped. Store in a well-ventilated, dry place and should be protected from rain and moisture.3 The uniformity of the gap between the two grinding wheels shall not be less than 90%. 3.6.4 The pre-compression amount of the grinding wheel compression spring shall comply with the provisions of the drawings and relevant technical documents. 3.6.5 The adjustment mechanism of each rotating part shall be flexible and reliable, and the connecting parts and fasteners shall not be loose. 3.6.6 The grinding wheel bearing shall have a sealing device.
3.6.7 There shall be no obvious oil leakage or material leakage in any part of the grinding mill. 3.6.8 The non-painted surface of the exposed machined parts of the grinding mill shall be coated with anti-rust oil. 3.6.9 Sufficient lubricating oil shall be added when assembling the grinding mill bearing. 3.6.10 The grinding mill shall run smoothly during the idling test, without any impact sound and periodic screaming sound, and the bearing temperature rise shall not exceed 10℃. The quality of the surface coating of the mill shall not be lower than the requirements of the ordinary coating specified in JB/T5673, and the total thickness of the paint film shall not be less than 35μm. 3.6.11
4 Test method
The performance test and production test of the mill shall be carried out in accordance with the provisions of JB/T5681. 5 Inspection rules
5.1 The dense powder machine shall be inspected and qualified by the inspection department of the manufacturer before leaving the factory, and shall be accompanied by an inspection certificate. 5.2 The mill shall be inspected for appearance and assembly quality according to the provisions of 3.6.10 and 3.6.11, and an idle running test of not less than 15 minutes shall be carried out. 5.3 Inspection of 3.6.3 of this standard
After the mill is switched on, a 60g/m paper with a length of 100mm and a width of 0.9 times the length of the grinding roll shall be placed between the two grinding rolls, and the fast roller shall be rotated to pass the paper. The distribution of tooth marks shall be observed, and the uniformity of the gap between the two grinding rolls shall be calculated (measured three times and the average value shall be taken). 5.4 The mill produced by batch discs shall be subjected to performance tests at least twice a year, and the results shall comply with the provisions of 3.4. 5.5 The ability of producing flour per centimeter of grinding roll in one drawing shall be inspected according to the provisions of 4.3.4 of JB/T5681--2000. 3
JB/T5630-2000
5.6 The ordering unit has the right to conduct random inspections on the factory powder separation machines according to the provisions of GB/T2828. The sample, batch and AQL value for random inspection shall be determined by negotiation between the ordering unit and the manufacturer.
6 Marking, packaging, transportation and storage
6.1 The mill label shall be fixed on the housing above the mill door, and the label shall comply with the provisions of GB/T13306. The label content shall include a) manufacturer name;
b) product name;
c) product model:
d) main technical parameters of the product:
e) product implementation standard:
f) product manufacturing date or factory number:
g) manufacturer's address.
6.2 The supply and demand parties shall negotiate to select appropriate materials and pack the products in a way that is suitable for transportation, loading and unloading and ensures that they are intact. Export products shall be packed according to the requirements of the foreign trade department. 6.3 The accessories supplied with the products shall be agreed upon by the supply and demand parties. The technical documents supplied with the product should include: 6.4
a) Product certificate:
b) Product instruction manual:
c) Packing list:
d) Three-guarantee certificate:
e) User opinion letter.
6.5 The grinding machine should be stored in a well-ventilated place with dry ground, and measures should be taken to prevent wind, rain and sun. A1 Marking
The marking of grinding rollers is as follows:
6FMG-
JB/T5680—2000
Appendix A
(Appendix of the standard)
Grinding roller
Grinding roller length, cm
Grinding roller
Grinding roller nominal diameter, cm
Grinding roller of roller mill
Example: The grinding roller with a nominal diameter of 220mm and a length of 350mm is marked as 6FMG-2235
A2 Technical requirements
A2.1 Material
A2.1.1 The alloy cast iron outer layer of the grinding roller shall be made of materials that have been tested and can ensure the use requirements. A.1.2 The inner layer of the grinding roller cast iron shall meet the mechanical property requirements of HT150 in GB/T9439. A2.1.3 The shaft should be made of steel not lower than 45 in GB/T699. A2.2 Manufacturing quality
A2.2.1 The depth of the chill layer of the body is 15~25mm.
A2.2.2 The working surface hardness of the body after mechanical processing is 50~57HRC, and the hardness of the effective working layer of the body (within the radial range of 13mm from the circumference to the center) is not less than 50HRC.
A2.2.3 After mechanical processing, the working surface of the body is not allowed to have casting defects such as cracks, slag inclusions, pores, sand limit and shrinkage. A2.2.4 There shall be no wire breakage, peeling, etc. after grinding and drawing, and the stray wire shall not exceed one tooth. A2.2.5 The radial runout of the working surface of the body to the common axis of the two bearing parts of the journal shall not be less than the 8th grade (smooth roller) or 9th grade (silk roller) specified in GB/T1184, the straightness of the working surface of the body shall not be less than the 8th grade (smooth roller) or 9th grade (silk roller) specified in GB/T1184, and the cylindricality of the working surface of the body shall not be less than the 8th grade specified in GB/T1184. A2.2.6 The radial runout of the two journals matched with the bearing to the axis of the grinding roller shall not be less than the 8th grade specified in GB/T1184. A=.2.7 The size deviation of the two journals matched with the bearing shall comply with the k6 specified in GB/T1801, and the surface roughness R is 1.6μm (the rolling bearing with a tapered sleeve shall be h8, and the surface roughness R is 3.2μm). A2.2.8 The size deviation of the two journals matched with the gear (or pulley) shall comply with the h8 specified in GB/T1801, and the surface roughness R is 6.3μm.
A3 Inspection rules and methods
A3.1 Grinding rollers shall be inspected and qualified by the inspection department of the manufacturer before they can leave the factory, and shall be accompanied by an inspection certificate. A3.2 The working surface hardness of the roller body is measured by taking three points on three lines separated by 120° around the working surface of the undrawn roller body (the three points on the same busbar are located at the center of the roller body and 40mm away from the two end faces). If the hardness of one point is unqualified, it is allowed to re-measure four points around the point, and the average value of the five points is taken as the hardness value of the point (the four re-measured points are located at the four corners of a square with a side length of 40mm centered on the unqualified point.
The hardness of the effective working layer of the body is tested by slicing. Slices are cut at 20mm from both ends of the body, and each slice is measured at four points 90° apart from the circumference of the circle 13mm from the circumference to the center in the radial direction. The minimum value is taken as its hardness value. A3.3 The mass-produced grinding rollers should be subjected to installation performance tests at least twice a year. The test method shall be in accordance with the provisions of JB/T5681, and the test items and requirements shall comply with the requirements of No. 6 in Table 1 of this standard. A3.4 Order form The manufacturer has the right to conduct random inspections on the milling machines leaving the factory in accordance with the provisions of GBT2828. The sample, batch and AQL value of the random inspection shall be determined by negotiation between the ordering unit and the manufacturer.
·A4 Marking, packaging, transportation and storage
A4.1 The milling machines shall be marked with the manufacturer's mark on either end of the milling machine before leaving the factory. A4.2 The milling machines shall be cleaned and rust-proofed before leaving the factory. The packaging materials and packaging methods shall be agreed upon by the supply and demand parties while ensuring that the products are not damaged.
A4.3 The milling machines must be gently lifted and placed during transportation, and shall not be allowed to roll or collide. A4.4 The milling machines shall be stored in a well-ventilated, dry place, and shall be protected from rain and moisture.4. The grinding mill produced in batches shall undergo performance tests at least twice a year, and the results shall comply with the provisions of 3.4. 5.5 The ability to produce flour per centimeter of grinding in one drawing shall be tested in accordance with the provisions of 4.3.4 in JB/T5681--2000. 3
JB/T5630-2000
5.6 The ordering unit has the right to conduct random inspections of the factory powder separator in accordance with the provisions of GB/T2828. The samples, batch sizes and AQL values ??for random inspection are determined by the ordering unit and the manufacturer through negotiation.
6 Marking, packaging, transportation and storage
6.1 The sign of the grinding mill should be placed on the housing above the grinding door, and the sign should comply with the regulations of GB/T13306. The content of the sign should include a) manufacturer name;
b) product name;
c) product model:
d) main technical parameters of the product:
e) product Implementation standards:
f) Product manufacturing date or factory number:
g) Manufacturer's address.
6.2 When the product is suitable for transportation, loading and unloading and ensures integrity and no damage, the supply and demand parties shall negotiate, select appropriate materials, and package in every possible way. Export products are packaged according to the requirements of the foreign trade department. 6.3 The accessories supplied with the product shall be agreed upon by both parties. The technical documents supplied with the product should be: 6.4
a) Product certificate:
b) Product instruction manual:
c) Packing list:
d) Three Guarantees Certificate:
e) User opinion letter.
6.5 The grinding mill should be stored in a well-ventilated place with dry ground, and measures should be taken to prevent wind, rain, and sunlight. A1 mark
The marking regulations for grinding rollers are as follows:
6FMG-
JB/T5680—2000
Appendix A
(standard appendix)|| tt||Grinding
Grinding length, cm
ed
Nominal grinding diameter, cm
Roller mill grinding
Example: The grinding roller with a nominal diameter of 220mm and a length of 350mm is marked 6FMG-2235
A2 Technical Requirements
A2.1 Material
A2.1.1 Grinding outer alloy cast iron should be used Test and ensure that the required materials are used. A.1.2 The ground inner cast iron should comply with the mechanical properties requirements of HT150 in GB/T9439. A2.1.3 The shaft should be made of steel no less than 45 in GB/T699. A2.2 Manufacturing quality
A2.2.1 series body white mouth layer depth is 15~25mm.
After mechanically adding T to the A2.2.2 body, the T surface hardness is 50~57HRC, and the hardness of the effective T. layer of the body (within the 13mm range from the circumference to the center in the radial direction) is not less than 50HRC.
A2.2.3 After mechanically adding T, the working surface is not allowed to have casting defects such as cracks, slag inclusions, pores, sand limits and shrinkage porosity. A2.2.4 There should be no wire breakage, peeling, etc. after grinding and drawing, and no more than one tooth should be messed up. A2.2.5 The radial circular runout of the working surface of the editing body to the common axis of the journals of the two bearing parts should not be lower than level 8 (light printing) or level 9 (wire printing) specified in GB/T1184. The plain line of the working surface of the editing body The straightness should not be lower than level 8 (smooth roller) or level 9 (silk roll) specified in GB/T1184, and the cylindricity of the working surface of the editing body should not be lower than level 8 specified in GB/T1184. A2.2.6 The radial runout of the two journals mated with the bearing to the axis of the grinding roller should not be lower than level 8 specified in GB/T1184. A=.2.7 The dimensional deviation of the two journals matched with the bearing should comply with k6 specified in GB/T1801, and the surface roughness R should be 1.6μm (rolling bearings equipped with tapered sleeves should be h8, and the surface roughness R. should be 3.2μm ). A2.2.8 The size deviation of the two journals mated with the gear (or pulley) shall comply with h8 specified in GB/T1801, and the surface roughness R shall be 6.3 μm.
A3 Inspection Rules and Methods
A3.1 Grinding should be inspected by the manufacturer's inspection department before leaving the factory, and the inspection certificate should be attached. A3.2 The hardness of the working surface of the editing body is taken from three points on three lines 120° apart around the working surface of the undrawn editing body (5
JB/T5680-2000
on the same bus) The three points are respectively located at the center of the hand-made body and 40mm from both ends). If the hardness of one point is unqualified, four additional points are allowed to be measured around the point, and the average of the five points is taken as the hardness value of the point (the four additional points are located at the four corners of a square with a side length of 40mm centered on the unqualified point) .
The hardness of the effective working layer of the block is tested by slicing at 20mm from both ends of the block. Each piece is measured at four points 90° apart from the circumference to the center 13mm. The minimum value is its hardness value. A3.3 The mass-produced grinding rollers shall undergo installation performance tests at least twice a year. The test methods shall be in accordance with the provisions of JB/T5681, and the test items and requirements shall comply with the serial numbers in Table 1 of this standard. 6. A3.4 The ordering unit has the right to conduct random inspections of the factory grinding materials according to the provisions of GBT2828. The sample size, batch size and AQL value shall be determined by the ordering unit and the manufacturer.
·A4 mark, packaging, Transportation and Storage
A4.1 The manufacturer's mark should be stamped on either end of the polishing body before leaving the factory. A4.2 The polishing should be cleaned and rust-proofed before leaving the factory to ensure that the product is not damaged. In the event of damage, the packaging materials and packaging methods shall be agreed upon by both parties.
A4.3 The machine must be lifted and handled with care during transportation, and shall not be rolled or bumped. Store in a well-ventilated, dry place and should be protected from rain and moisture.4. The grinding mill produced in batches shall undergo performance tests at least twice a year, and the results shall comply with the provisions of 3.4. 5.5 The ability to produce flour per centimeter of grinding in one drawing shall be tested in accordance with the provisions of 4.3.4 in JB/T5681--2000. 3
JB/T5630-2000
5.6 The ordering unit has the right to conduct random inspections of the factory powder separator in accordance with the provisions of GB/T2828. The samples, batch sizes and AQL values ??for random inspection are determined by the ordering unit and the manufacturer through negotiation.
6 Marking, packaging, transportation and storage
6.1 The sign of the grinding mill should be placed on the housing above the grinding door, and the sign should comply with the regulations of GB/T13306. The content of the sign should include a) manufacturer name;
b) product name;
c) product model:
d) main technical parameters of the product:
e) product Implementation standards:
f) Product manufacturing date or factory number:
g) Manufacturer's address.
6.2 When the product is suitable for transportation, loading and unloading and ensures integrity and no damage, the supply and demand parties shall negotiate, select appropriate materials, and package in every possible way. Export products are packaged according to the requirements of the foreign trade department. 6.3 The accessories supplied with the product shall be agreed upon by both parties. The technical documents supplied with the product should be: 6.4
a) Product certificate:
b) Product instruction manual:
c) Packing list:
d) Three Guarantees Certificate:
e) User opinion letter.
6.5 The grinding mill should be stored in a well-ventilated place with dry ground, and measures should be taken to prevent wind, rain, and sunlight. A1 mark
The marking regulations for grinding rollers are as follows:
6FMG-
JB/T5680—2000
Appendix A
(standard appendix)|| tt||Grinding
Grinding length, cm
ed
Nominal grinding diameter, cm
Roller mill grinding
Example: The grinding roller with a nominal diameter of 220mm and a length of 350mm is marked 6FMG-2235
A2 Technical Requirements
A2.1 Material
A2.1.1 Grinding outer alloy cast iron should be used Test and ensure that the required materials are used. A.1.2 The ground inner cast iron should comply with the mechanical properties requirements of HT150 in GB/T9439. A2.1.3 The shaft should be made of steel no less than 45 in GB/T699. A2.2 Manufacturing quality
A2.2.1 series body white mouth layer depth is 15~25mm.
After mechanically adding T to the A2.2.2 body, the T surface hardness is 50~57HRC, and the hardness of the effective T. layer of the body (within the 13mm range from the circumference to the center in the radial direction) is not less than 50HRC.
A2.2.3 After mechanically adding T, the working surface is not allowed to have casting defects such as cracks, slag inclusions, pores, sand limits and shrinkage porosity. A2.2.4 There should be no wire breakage, peeling, etc. after grinding and drawing, and no more than one tooth should be messed up. A2.2.5 The radial circular runout of the working surface of the editing body to the common axis of the journals of the two bearing parts should not be lower than level 8 (light printing) or level 9 (wire printing) specified in GB/T1184. The plain line of the working surface of the editing body The straightness should not be lower than level 8 (smooth roller) or level 9 (silk roll) specified in GB/T1184, and the cylindricity of the working surface of the editing body should not be lower than level 8 specified in GB/T1184. A2.2.6 The radial runout of the two journals mated with the bearing to the axis of the grinding roller should not be lower than level 8 specified in GB/T1184. A=.2.7 The dimensional deviation of the two journals matched with the bearing should comply with k6 specified in GB/T1801, and the surface roughness R should be 1.6μm (rolling bearings equipped with tapered sleeves should be h8, and the surface roughness R. should be 3.2μm ). A2.2.8 The size deviation of the two journals mated with the gear (or pulley) shall comply with h8 specified in GB/T1801, and the surface roughness R shall be 6.3 μm.
A3 Inspection Rules and Methods
A3.1 Grinding should be inspected by the manufacturer's inspection department before leaving the factory, and the inspection certificate should be attached. A3.2 The hardness of the working surface of the editing body is taken from three points on three lines 120° apart around the working surface of the undrawn editing body (5
JB/T5680-2000
on the same bus) The three points are respectively located at the center of the hand-made body and 40mm from both ends). If the hardness of one point is unqualified, four additional points are allowed to be measured around the point, and the average of the five points is taken as the hardness value of the point (the four additional points are located at the four corners of a square with a side length of 40mm centered on the unqualified point) .
The hardness of the effective working layer of the block is tested by slicing at 20mm from both ends of the block. Each piece is measured at four points 90° apart from the circumference to the center 13mm. The minimum value is its hardness value. A3.3 The mass-produced grinding rollers shall undergo installation performance tests at least twice a year. The test methods shall be in accordance with the provisions of JB/T5681, and the test items and requirements shall comply with the serial numbers in Table 1 of this standard. 6. A3.4 The ordering unit has the right to conduct random inspections of the factory grinding materials according to the provisions of GBT2828. The sample, batch size and AQL value shall be determined by the ordering unit and the manufacturer.
·A4 mark, packaging, Transportation and Storage
A4.1 The manufacturer's mark should be stamped on either end of the polishing body before leaving the factory. A4.2 The polishing should be cleaned and rust-proofed before leaving the factory to ensure that the product is not damaged. In the event of damage, the packaging materials and packaging methods shall be agreed upon by both parties.
A4.3 The machine must be lifted and handled with care during transportation, and shall not be rolled or bumped. Store in a well-ventilated, dry place and should be protected from rain and moisture.5. The radial circular runout of the working surface of the series body to the common axis of the journal of the two bearing parts should not be lower than level 8 (light series) or level 9 (wire series) specified in GB/T1184. The straightness of the plain line of the working surface of the series body It should not be lower than level 8 (smooth roller) or level 9 (silk roll) specified in GB/T1184, and the cylindricity of the working surface of the editing body should not be lower than level 8 specified in GB/T1184. A2.2.6 The radial runout of the two journals mated with the bearing to the axis of the grinding roller should not be lower than level 8 specified in GB/T1184. A=.2.7 The dimensional deviation of the two journals matched with the bearing should comply with k6 specified in GB/T1801, and the surface roughness R should be 1.6μm (rolling bearings equipped with tapered sleeves should be h8, and the surface roughness R. should be 3.2μm ). A2.2.8 The size deviation of the two journals mated with the gear (or pulley) shall comply with h8 specified in GB/T1801, and the surface roughness R shall be 6.3 μm. bzxz.net
A3 Inspection Rules and Methods
A3.1 Grinding should be inspected by the manufacturer's inspection department before leaving the factory, and the inspection certificate should be attached. A3.2 The hardness of the working surface of the editing body is taken from three points on three lines 120° apart around the working surface of the undrawn editing body (5
JB/T5680-2000
on the same bus) The three points are respectively located at the center of the hand-made body and 40mm from both ends). If the hardness of one point is unqualified, four additional points are allowed to be measured around the point, and the average of the five points is taken as the hardness value of the point (the four additional points are located at the four corners of a square with a side length of 40mm centered on the unqualified point) .
The hardness of the effective working layer of the block is tested by slicing at 20mm from both ends of the block. Each piece is measured at four points 90° apart from the circumference to the center 13mm. The minimum value is its hardness value. A3.3 The mass-produced grinding rollers shall undergo installation performance tests at least twice a year. The test methods shall be in accordance with the provisions of JB/T5681, and the test items and requirements shall comply with the serial numbers in Table 1 of this standard. 6. A3.4 The ordering unit has the right to conduct random inspections of the factory grinding materials according to the provisions of GBT2828. The sample, batch size and AQL value shall be determined by the ordering unit and the manufacturer.
·A4 mark, packaging, Transportation and Storage
A4.1 The manufacturer's mark should be stamped on either end of the polishing body before leaving the factory. A4.2 The polishing should be cleaned and rust-proofed before leaving the factory to ensure that the product is not damaged. In the event of damage, the packaging materials and packaging methods shall be agreed upon by both parties.
A4.3 The machine must be lifted and handled with care during transportation, and shall not be rolled or bumped. Store in a well-ventilated, dry place and should be protected from rain and moisture.5. The radial circular runout of the working surface of the series body to the common axis of the journal of the two bearing parts should not be lower than level 8 (light series) or level 9 (wire series) specified in GB/T1184. The straightness of the plain line of the working surface of the series body It should not be lower than level 8 (smooth roller) or level 9 (silk roll) specified in GB/T1184, and the cylindricity of the working surface of the editing body should not be lower than level 8 specified in GB/T1184. A2.2.6 The radial runout of the two journals mated with the bearing to the axis of the grinding roller should not be lower than level 8 specified in GB/T1184. A=.2.7 The dimensional deviation of the two journals matched with the bearing should comply with k6 specified in GB/T1801, and the surface roughness R should be 1.6μm (rolling bearings equipped with tapered sleeves should be h8, and the surface roughness R. should be 3.2μm ). A2.2.8 The size deviation of the two journals mated with the gear (or pulley) shall comply with h8 specified in GB/T1801, and the surface roughness R shall be 6.3 μm.
A3 Inspection Rules and Methods
A3.1 Grinding should be inspected by the manufacturer's inspection department before leaving the factory, and the inspection certificate should be attached. A3.2 The hardness of the working surface of the editing body is taken from three points on three lines 120° apart around the working surface of the undrawn editing body (5
JB/T5680-2000
on the same bus) The three points are respectively located at the center of the hand-made body and 40mm from both ends). If the hardness of one point is unqualified, four additional points are allowed to be measured around the point, and the average of the five points is taken as the hardness value of the point (the four additional points are located at the four corners of a square with a side length of 40mm centered on the unqualified point) .
The hardness of the effective working layer of the block is tested by slicing at 20mm from both ends of the block. Each piece is measured at four points 90° apart from the circumference to the center 13mm. The minimum value is its hardness value. A3.3 The mass-produced grinding rollers shall undergo installation performance tests at least twice a year. The test methods shall be in accordance with the provisions of JB/T5681, and the test items and requirements shall comply with the serial numbers in Table 1 of this standard. 6. A3.4 The ordering unit has the right to conduct random inspections of the factory grinding materials according to the provisions of GBT2828. The sample size, batch size and AQL value shall be determined by the ordering unit and the manufacturer.
·A4 mark, packaging, Transportation and Storage
A4.1 The manufacturer's mark should be stamped on either end of the polishing body before leaving the factory. A4.2 The polishing should be cleaned and rust-proofed before leaving the factory to ensure that the product is not damaged. In the event of damage, the packaging materials and packaging methods shall be agreed upon by both parties.
A4.3 The machine must be lifted and handled with care during transportation, and shall not be rolled or bumped. Store in a well-ventilated, dry place and should be protected from rain and moisture.
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